Power transformers have rating_______________?

Related Mcqs:

_______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?

A. Silver B. Steel C. Aluminium D. Copper...

cooling is the process of dissipating the armature and field winding losses to a cooling medium circulating within the winding insulation wall______________?

A. Direct B. Indirect C. Conventional D. Any of the above...

Tractive magnets are operated from____________?

A. a.c. supply B. d.c. supply C. either a.c. or d.c. supply D. none of the above...

The value of exciting or magnetizing current depends upon which of the following factors ?

A. Total m.m.f. required B. The number of turns in the exciting winding C. The way in which the winding is distributed D. All of the above...

___________ brushes are fragile and cause excessive wear of commutator?

A. Natural graphite B. Hard carbon C. Electro graphitic D. Metal graphite...